The Octane Number is retained owing to HZSM 5 � � s excellent ability of aromatization, isomerization and alkylation.HZSM-5沸石对汽油的降烯烃作用得益于其优异的芳构化 、 异构化和烷基化性能.These derivatives are readily obtained by alkylation of 2 - mer...
These derivatives are readily obtained by alkylation of 2 - mercaptopyridine and alkyl halides under alkaline conditions.这些衍生物可以容易地在碱性条件下通过 2- 巯基吡啶和卤代烷的烷基化而得到.The different contents of various alkylation products were ob...
Because Linux works on the basis of open-source code, anyone can theoretically tamper with a program.因为Linux建立在开源代码的基础上，理论上任何人都可以干预一个程序。This paper mainly introduces a method of programming daemon for Linux.本文介绍Linux守护进程的...
Computers and electronics are growth industries and need skilled technicians.计算机与电子行业属于蓬勃发展的产业，需要娴熟的技术人员。He is a hard worker and a skilled gardener.他工作很努力，对园艺很在行。A high proportion of the new arrivals are skilled professi...
Three of the hotels are in receivership, and others are teetering on the brink of bankruptcy.有3家宾馆已破产在管，其他几家正在破产的边缘徘徊。Their economy is teetering on the brink of collapse.他们的经济徘徊在崩溃的边缘。Look! There's a drunken man tee...
...a gold suit and a glittery bow tie.一身金色套装和一个华丽的领结The train bowls along the valley of the Elbe by the glittery river.列车在易北河流域沿着闪闪发光的河流疾驰.You also could use product's part identification to be a glittery point.还可以借...